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A .wz m ".2 Y .o w l 1, rnuunun-milhr 3 Sheets-Sheet 1 E. J'. lm oomySUPPLY INSTALLATION FOR CENTRAL CHASSIS LUBRICATION Original Filed lFeb.

' March 2 1926. v

r EV. J. BLooM- y f 1 1 `SUPPLY INSTALLATION FOR CENTRAL CHASSISLUBRICATION Original Filed Feb. 1, 1922 .3 sheets-sheet 2 3.Sheets-Sheet 5 L Imm E. J. BLOOM SUPPLY INSTALLATION FOR CENTRALCHASSISLUBRICATION Original Filed` Feb.

INVENTOH c///oom/ f L rnonnzv March 2 1926.

-djaz A' Rsiued Mar. 2,1926. I' Re. 16278,

' UNlT-Eo STATES-PATENT OFFICE.

EDGAR J'. BLOOM, OE TIFFIN, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TOAUTO RESEARCH CORPORATION, CORPORATION OF NEW YORK.

SUPPLY INSTALLATION FOR CENTRAL CHASSIS LUBBICATION.

originali No. 1,451,861, dated Apru 17, 192s, sr1a1 No. 533,476, 111mrebruiyi, 1922. Appnoaaon for reissue `iled April 17, 1925. Serial= No.23,982.Y

T o all lwhom t may concem: l with respect to the dash. This eye boltar- 55 Beit known that I, EDGAR J. BLooM, a rangement is a valuable'onein connection citizenv of the United States, residing at with the pumpg; This pump has a flan e Tiffin, in the county of Seneca and' State ofh which can/be secured to the inside of to Ohio, have invented certainnew and useful dash by the v"screws z. The end of the pump Improvementsin Supply Installations for is shown in the form of a T j that'screws-60 Central Chassis Lubrication, of which the onto the pumpcylinderk. Inasmuch as the following is a specification. Y. fitting ofthe pum to the ,pump cylinder This invention relates to pumps andespeand securing the ange to the inside of the ciallyto aforce pumpinstallation employed dash may vary the amount y'of rotrusion of as anelement in a lubricating system. A the pump forwardof the dash, 1t isdesirable 65 new type of chassis lubrication adopted in to have asupporting arran ement for the connection with automobiles provides acentop of the reservoir whiclrwill adjust itself tral source'of oil andflexible conduits conto variations of the pump which` supports duct thisto the various shackle bolts, the reservoir at the bottom.

knuckle pins, etc., that have heretofore been The pump T y' has externalthreads at its 70 provided with separate grease cups or oil topcomprising a nipple, upon which is cups. Suitable flexible and'swivellng conthreaded the socket or nut member m which nections areprovided to make possible the -is soldered to the bottom of thereservoir a connection between the chassis frame and and` the latter maybe considered a part of the running gear. My installation includes the Tfor purpose of reference in the claims.75 a reservoir supplyinglubricant to a force The packing washer /nL fits intothe bottom pumpassociated therewith and serving to of the socket m, and onto the end ofthe T. force the oil.to the lubricating points. There is sweated intothe bore of the T a 2.5 It is an object of the present inventionvertical tube o which is spaced from rthe to `provide an effective pumpinstallation walls of the bore 'for the larger part of its 8 especiallydesigned for such afsystem and length..y On top of this vertical tubevis which can be manufactured at very low cost. located a metal diskorcheck valve p which However,` thepumppas will 'be` apparent has someclearance from the side walls of 3U can beused almost anywhere and henceis of the borev of thev T. The plunger rod is desigwide'application.nated q. The plunger is made up of a bus 85 In the drawingsing *r and apair- `of leather cup washers s Fig. 1 is a vertical cross sectionthrough having oppositely-directed flanges and the pump and reservoirwith the plunger spaced by the washer t. The bushing r enrod button onthe dash of the car.- n y gaging the packing washer y prevents the Fig.2 is a vertical cross section of ai cup washers striking the end ofthecylinder. 90l modified form of construction, *withA the By screwing downthe nut u on the end of plunger rod button on the dash of the car. 'theplunger rodagainst the washer la, the Fig. 3 is al fragmentary verticalcross sec# plunger -is completed. It will be noticed 40 tion of astillfurther modied form of con- ,that this is a very cheap and simpleconstruction. struction. 95 Fig. 4 is an elevation of the reservoir andThe pump cylinder k is simply a short the pump showing the pump arrangedto 4piece oftubing.l A cap nut closes the inner have the plungeroperated from the instruend ofthe pump cylinder and is provided i. mentboard of the car. y with an orifice to allow the plunger rod g@designates the oilv reservoir which may to slide therethrough. 100 besimply'asphere provided with a neck or- One of the important features ofthis y .tion b. The eye .bolt o screws into'the ash "design is thatafter the plunger has been fixture al and may 'belocked in any givenplaced in the cylinder the cup washers are position by the lock nut' Theeye of the nevenagain disturbed 'except under unusual bolt fits overthe'shoulder :ofthe neck to circumstances n or are they required to pass 105hold vthe reservoir a in any givenv osition. an intake opening in theside of the cylinf'By screwing' down the nut f the nec of the der whichis calculated to disturb thecup .reservoir is firmly held in spacedrelation: washers. l This type of cup washer, especially where there aretwo cup washers withoppositely-directed flanges, is easily disturbed andinjured. The flanges when stroked the wrong way by running against anobstruction are very difficult to rearrange and easily torn ordestroyed. With the type of cylinder and valve arrangement now to bedescribed. it will be seenthat there is -absolutely no opening and nooccasion for ever disturbing the cup washers after they have beenassembled'nto the cylinder. The T, together with the vertical tube, is arelatively cheap construction from a manufacturing standpoint.

When .the plunger is drawn toward the operator it tends to create avacuum in the pump ywhich draws the oil from the reservoix` through thegoose-neck z and down into the well l and into the pump cylinder of thepump. This well of the pump is between the wall of the 'main bore of theT and the wall of the vertical tube o.l The check valver y) Vremainsseated over the outlet orilice through the vertical tube because thepressure is on top of the check valve. When the plunger of the pump isreversed the check valve p is driven up against the washer n because theouter edges of the check valve protrudes beyond `the tube 0.Consequently the First effect of the reversed pressure on the Huid is toforce the check valve against the packing Washer n which constitutes avalve seat therefor, thereby closing the intake and opening the outlet,which permits the fluid to run down through the outlet passage 2 intothe elbow 3 and from here by various pipe connections to the points ofdistribution.

The purpose of the goose-neck is to prevent any oil from leaking out ofthe reser voir when the pump is not in operation. When the pump is notbeing used the check valve p is held to its seat simply by gravity andin passing over rough roads s jarred up and down so that this would leakunder ordinary conditions. Obviously with y .a goose-neck no oil canleave the reservoir except what is drawn by suction.

Fig. 2 illustrates another way of accomplishing the same purpose. Bybringing the distributing pipe 4 up above the oil 1n the reservoir, thisacts as a trap which prevents any oil that might leak through the checkva ve p reaching the parts to be lubricated unless the same' is forced"thereto by the pump. l

Still another way o-f preventing leakage is'shovvn in Fig. 3, where thecheck valve p is held to its seat by the coiled spring 5.

It is not necessary that the fixture that I have called a T should beprecisely formed as a T. The'stem of the T may have an obliquedisposition. as is shown in Fig. 4, and the pump cylinder may also' havean oblique dlsposition, as shown in this gure.

'of the car Where it is This permits the pump plunger rod g to beextended up through the instrument board 6 possibly more convenient forthe operator. A suitable flange 7 and nut 8 serves to form a fixture onthe instrument board which acts as a guide for the inner end of theplunger rod g.

This location'of the outlet opening above the plunger gives the fluid anupward course which quickly vlifts the valve against its seat over theinlet port. Otherwise this valve movement would be slow. edges of thevalve overhanging into the well the valve is caught in theupward-flowing fluid and quickly forced against its seat over the intakeport. v

I claim y l. A supply installation Afor a chassis lubricating system,including a reservoir, a pump cylinder lstructure having an inletadjacent to an outlet opening through said reservoir, means adjacent tosaid inlet mechanically attaching together said reservoir and said vpumpstructure to combine them into a`unil'ary apparatus with the pumpcylinder exteriorly of the reservoir, and to effeet asubstantiallylubricant-tight connection for flow of lubricant out of the reser- Voirinto4 the pump cylinder structure, said apparatus having means servingfor mounting thereof upon one side of a dashboard and including a pumpplunger having an gpelrating member to protrude through said c as 1.

2. A supply installation for a chassis lubricating system7 including areservoir, a

Vpump cylinder structure having an inlet adjacent to an outlet openingthrough said reservoir, means adjacent to said inlet mechanicallyattaching together said reservoir and said pump structure to combinethem into a unitary apparatus with the pump c vlinder exteriorly of thereservoir, and to effecta substantially lubricant-tight connection forflow of lubricant out ofthe reservoir into the pump cylinder structure,a valve near the lower part of said reservoir, a support upon which saidvalve normally rests in open position, and a seat above said valveagainst which the latter is` urged by lubricant discharging operation ofthe pump.

3. A supply installation for a chassis lubricating sytem including areservoir, a pump cylinder structure having an inlet adjacent to anoutlet opening through said reservoir, threaded means adjacent saidinlet mechanically attaching together said reservoir and said pumpstructure to combine them into a unitary apparatus with the pumpcylinder exterioi'ly of the reservoir, and to effect a substantiallylubricant-tight con apparatus having means serving for mountlnollubricating system including a ing thereof upon one'side of vadashboard and including a pump plunger having an operating member toprotrude through Said dash, a valve near the lower part of saidreservoir, a support upon which said valve normally rests in openposition, and a seat above said valve against which the latter is urgedby lubricant discharging operation ofy the pump.

4.v A supply installation for a chassis ump `cylinder structure havingmeans serving for attachment thereof against the a motor vehicle, areservoir supported upon said pump structure. in lubricant-tightcommunication therewith and' extending the-reabove, a check-valve, asupport for the latter carried by said cylinder structure, said valvepermitting iow of lubricant from the reservoir toward the pump, and aseat above said valve against which said valve is raised and held bypressure exerted during pump discharge. c

5. A supply installation for la chassis lubricating system, including, apump cylinder structure having an outstanding flange adapted forattachment thereof to the dashboard of an automobile, said -structureincluding an inlet nipple extending thereabove, an outlet extendingtherebelow, a sheet metal reservoir, a nut securing said reservoir uponsaid nipple, said nipple having a valve associated therewith, a supportupon which said valve normally rests to afford open communication fromthe reservoir to the pump structure, anda valve seat at said nipplevabove said valve against which the latter is-urged by lubricantdischarging operation of the pump.

6. A supply instal ation for a chassis lubricating system including apump cylinder structure, a mounting fiange thereon at which it may beattached to the dashboard of an automobile, said cylinder having' aninlet nipple, a reservoir supported at its bottom uponsaid pumpstructure and seiured thereto at said nipple and a check valveassociated with said nipple normally open for flow of lubricant fromsaid reservoir toward said pump and adapted to seat under dischargepressure by said pump to prevent return of lubricant from said pump tosaid reservoir.

7. A supply installation for al chassis' lubricating system including, apump cylinder structure having a flange mount near the outer end thereofadapted for attachment to the dashboard of an automobile for disposal ofa substantial part of the cylinder structure to the front of thedashboard, a reservoir .mounted upon and secured to the `der to thereservoir dashboard of tending upward pump cylinder structure, a checkvalve to prevent return of lubricant from the cylinduring discharge ofthe pump, a pump plunger in said cylinder, and a packingA about the pumpplunger near the outer end thereof to prevent escape of lubricant fromthe pump cylinder to the rear of the dashboard.v

'8. A supply installation for a chassis lubricating system including apump cylinder having a flan e near the rear end thereol' for attachmentt iereof to a dashboard and having a pump rod with an eperating memberexposed at t e rear thereof, a flow sealing washer carried by the innerend of said pump rod, gasket means at the exposed side of said pump, anipple extending upward from said pump and affording admission oflubricant thereto, a pipe terminal below said pump for exit of lubilcanttherefrom, voir extending above said nipple, a nut securing saidreservoir to said nipple, a gravity-lield valve normally openingcommunication for flow of lubricant from the reservoir into the pump,said valve subject to pressurev from` said pump during the lubricantdischarging stroke 'hereof to prevent return of lubricant to thereservoir, whereby the charge of lubricant from the pump will be ejectedthrough the pipe terminal outlet.

9. A supply installation for a chassis lubricating system including apump structure vhaving an upwardly extending inlet nipple therefor andan outlet therefrom, a. nut threaded upon said inlet nipple, a sheetmetal reservoir supported upon s aidpump structure and secured theretoby said nut, a filling opening in the top of said reservoir, a strainertherebelow, a valve in said nipple, a support there-for normallyafording open coinmunication from said reservoir into Said pumpcylinder, a portion of said nut exfrom the bottom of saidv reservoir.

10. A supply installation for a chassis lubricating system including areservoir and pump assembly, the pump element thereof having an inletbelow the level of the lubricant in the reservoir, said installationhaving a check valve normally open, and

lclosediby discharge pressure exerted by the pump and preventing returnflow to the reservoir, said reservoir having a filling opening'. andsaid pump having an operating member for protrusion through a cora sheetmetal reserresponding aperture in the dashboard for actuation by asubstantially thrust.

EDGAR .-i. BLooM.

l horizontal v

